• Reptiles are  vertebrates
  • They have backbones.
  •  They are air-breathing, cold-blooded.
  • They have scaly bodies.
  • Most reptile species are egg-laying.
  • Although lizards, snakes and worm-lizards  give birth to live young.
  • All species fertilize eggs internally.
  • All species of reptiles have at least one lung.

The major groups of living reptiles are:

The Turtles                                         order Testudines

Tuatara                                              order Rhynchocephalia [Sphenodontida]

Lizards and snakes                          order Squamata

Crocodiles                                           order Crocodylia, or Crocodilia


Average Life Span of Reptiles in Captivity

Old World chameleons 3 to 8 years
Leopard tortoise 50+ years
Leopard gecko 20+ years
King snake 10 to 15 years
Green iguana 5 to 15 years
Green anole 4 to 8 years
Eastern box turtle 25 to 50 years
Corn snake 10 to 15 years
Boa constrictor 15 to 25 years
Bearded dragon 5 to 10 years
Ball python 15 to 20 years


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